Vehicular antenna base



FIG. 1 is a front, bottom and right side perspective view of a vehicular antenna base showing my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a right side and rear perspective view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a front elevational view thereof.

The broken line showing of the antenna is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a vehicular antenna box, as shown and described. 